Portable vulcanizer.



E` T. HORSEY.

PORTABLE VULCANIZER.

APPLICATION FILED MAR. 5.@915. KEN1-:WED MAY 11. |915.

u 155304,021. v Patented Nov.7,1`916.

UNITED srn'rns ernten.

EDGAR T. HORSEY, F CLEVELAND, UHIO.

PORTABLE vuiicaiarzan'.

Specification of Letters Patent.

`I Jatented Nov. *7, 1916.

Application tiled March 5, 1915, Serial No. 12,249.- Renewed May 11, 1916. Serial` No. 96,943. ff' i To all whom it may concern Be it known that I, EDGAR T. Horreur, a' citizen of the United States, residing* at Cleveland, i'n the county of Cuyahoga and State oit'` Ohio, have invented a certain new and useful Improvement in Portable Vulcanizers, 4of which the following is a full, clear, and exact description.

This invention relates to a vulcanizer of 1\0\ the portable type. By this I mean a vulcanizer which 1s small in its dimensions, so

parts heated in the vulcanizer are removed' from the parts which secure the tire during the vulcanizing operation so that the same will not become heated, and further, to provide a portable vulcanizer in which a yielding pressure is placed upon the tire'as it is repaired, causing the presser'Y portion of the v-ulcanizer'to `follow' the patch as it softens r under the heat to keep the pressure upon the patch' and tire constant.

Generally speaking, the invention comprises the elements and combinations thereof set forth in the accompanying claims.

Reference should be had to the accom- 'panyingdrawings forming a part ofthis g5 specification, in which- F'gure 1 is a perspective view of the vulcanizer; Fig. 2 is a side elevation with portions in section of the vulcanizer', and Fig. 3 is a front elevation with portions in section of the vulcanizer..

4 Upon a support 1, which may be of wood or any desired material, there is mounted a base 2. which is supported upon legs 3, the space betweenthe legs vis out out as indi- ,45 cated at 4, so as to provide a circulation of air for purposes which will be later described. Upon the base 2 is a vulcanizing plate 5 which in the instance lshown is formed as a part of the. base 2. However,

the plate 5 is polished and made substantially smooth so as to provide as near as practical an absolutely flat face against which the vulcanizin may be accomplished. At the rear end o the base 2 there is an 55.11pwardly extending post 6 which is bifurcated The post 6 receives end of a lever 7, there being a pin 8 which extendsfthrough `v the post and the lever 7 providing a pivotal connection between the lever and post. In.

termediate of the ends of the lever there is a pivot 9 which supports a bifurcated arm. 10, and the arm carries either secured to it',`

or as an integral part 'of it, a presser headLf- At the outer end of thelever y7 there is a l' rounded depression as indicated at 13. This iThiS presser `head is slightly concaved as depression is adapted to receive 'the rounded head la of a lever 15. Secured to the leverr and eccentric With-respect thereto is a yoke 16-which straddles the lever 7, and the head 14. A'spring 17 is at one end secured to the yoke 1G and at its opposite end secured to the support l. The spring is secured in such a manner so that its connection is exible.

As will be clearly seen by reference to Fig. 2 the base 2 is hollow and has eXtend' ing downwardly therefrom pins 18, there bemg three of such pins, only two however, appearing in the drawings. These pins are for the purpose of positioning a lamp 19`r thereby to .bring the lamp into proper posi-lv tion to heat the plate 5. The lampmay be 'of any desired shape or construction, however, `I prefer a lamp which may employ denatured alcohol'or similar substances as its Source of heat. The lamp is provided with a handle 19a by which it may be removed from beneath the plate 5.-

The operation and manner of use of the devicevis as follows: Preferably a piece of4 p-aper or similar material 20 is placed upon the plate 5. A patch 21 is placed upon a tube 22 in proper position to cover the punctureor hole in the tube and suitable vul-` canizing cement is placed between the patchA and tube so as to cause a union betweenv the tube and patch. The presser head 11 is then placed against the tube and in position over the patch., The head 11 is then introduced into the groove 13 in the lever 7 and the handle 15 of the lever is swung into the position shown in Fig.f2. This places the presser headA 11 under the tension of the spring 17. VA. quantity of inflammable material, such as denatured alcohol, is then placed in the lamp 19, the same ignited, and the lamp placed beneath the plate 5. The heat of the lamp will heat the vulcanizing plate, causing the cementing material between the patch and the tube to unite the patch and the tube in a manner which is well understood in the vulcanizing art. As the rubber is heated, it will flow and by giving the presser head l1 the concave inner surface as hereinbefore described, it will cause the material between the patch and the tube to flow outwardly, and so produce a feather edge to the patch. r)This will prevent the patch from sculiing up by the rubbing action between the inner tube and the outer when the repaired tube is subsequently used. As before stated, the heating of the material which is to vulcanize the patch and the tube causes the material to flow and also causes a certain', amount of flowing between the skin of the tube and the skin of the patch of those portions which are adjacent to each other. The spring 17 being under tension will, under these conditions, cause the presser head 11 to continue its pressure with practically unabated force against the tube during this vulcanizing action, thus maintaining the pressure which will cause a complete and satisfactory unionA between the patch and the tube.

The quantity of inflammable material which will be used in the lamp 19 is dependent upon the time necessary to effect a cure of the vulcanizing material which is used. It is my purpose to supply material by which the repair may be made upon a tube, so that definite .instructions may be given as to the time during which the heat should be applied to the plate 5. Heat will be applied as long as there is inflammable material within the lamp 19, and it is the 0bject to put in the lamp- 19 only sufficient inflammable material to heat the plate 5 for the length of time which is desirable in order to elfect a cure of the patch.

It is preferable to leave the tire and its patch in the vulcanizer until the tire and patch are somewhat cooled, so that the vulcanized rubber will have become solid, thus largely obviating any chance for the patch being peeled from the tube.

It will be noted that the portions of the vulcanizing apparatus which are handled by the operator are entirely removed from the portion of the device which is heated, that is to say, even if a tube be removed immediately from the vulcanizer, after the heat has been applied to the tube and patch a sufiicicnt lengthy of time, the parts which must be handled by the operator are so tar removed from the portion heated that there is no danger of the operator burning his hands. vulcanizer is used it is practically impossible for the lever 'i' and the handle 15 to become heated to any such extent as to make it uncomfortable for the operator to handle the Same. This is a very important feature in that it permits the presser plate 11 to be removed carefully and obviatcs the During the short time which the.

danger of' slippage between the patch and tire.

It is further desired tewartiularly call attention to the fact that during the vulcanizing action the tire and patch are constantly under the practically uniform tension of the spring 17 which holds the tire and patch closely together, and so assures a close union between the patch and tire.

Having described my invention, I claim:

l. In a portable vulcanizer, the combination with a hot plate, a presser head coperating with the hot plate, a; lever upon which the presser head is carried, and means beneath the hot plate for accommodating a heating means, a spring for holding the outer end of the lever which carriesthe presser head, and means engaging the lever for extending the spring.

2. In a portable vulcanizer, the combination with a hot plate, a presser head coperating with the hot plate, a lever for supporting the presser head, a spring secured at one end, a cam member connected with ,the free end of the spring said cam member engaging the outer end of the said lever to place the spring under tension.

3. In a portable vulcanizer, the combination with a hot plate, a presser'head coperating with the hot plate, a pivoted lever upon which the presser head is carried, a

' vspring secured at one end, a yoke engaging the free end of the spring, a cam lever engaging the outer end of the spring said cam lever being pivotally connected with the oke whereby when the cam lever is opera t2, presser head is placed under spring pressure.

4. In a portable vulcanizer, the combina.- tion with a hollow base adapted to receive a heating device, a hot plate carried by said base, a presser head, a lever pivoted upon the base to which lever the presserhead is pivoted, a spring secured at one end, a. cam lever engaging the outer end of the lever which carries the presser head, operative connections between the cam lever and the free endV of the spring whereby when thev cam lever is operated the presser head is placed under pressure.

5. In a portable vulcanizer, the combination with a plate member, of a head member coperating with the plate membei', a pivoted lever upon which the head member i carried, a resilient means for holding the lever and means connected with the resilient means and engaging the lever ,for placing the resilient means under tension.

6. In a portable vulcanizer, the combination with a plate member, of a head meml-er coperating therewith, a pivoterl lever upon which the head member islcarried, a spring for holding the lever, a cam member connected with the spring and adapted to engage with the lever to place the spring under tension.

between which 7. In y'a portable vulcanizer, the combination with two opposed members which may be moved toward and from each other and Aber for engaging with the base and the end of the lever opposite the pivoted end, and means fox-*heating one of the said members.

9. In a portable vu1canizer,the'combina tion with two opposed members rbetween which the work to be vulcanized is received, one of said members being carried by a base,

the material to be vulcanized' is placed, devices for supporting each ofsaid members, said the other of said members being carried by a `device which is pivoted to the base, a spring and cam member to which the spring is secured, whichspring and cam member c0- drawing the said opposed members toward each other. f

10. In a portable vulcanizer, the combination with two opposed members, one vof.

Which is flat and the other of which has a slightly concave surface between which memb'ers the work. to be vulcanized is received, means for supporting each of said members, the said means at certain portions being pivoted' together, and a spring coperating with the said means for urging the said members toward each other.

In testimony whereof, I hereunto aixmy voperate with the base in the said device for signature in the presence of two witnesses.

' EDGAR T. HORSEY.

. Witnesses:

A. J.,HUDsoN, C. V. SCHURGER. 

